urtel



June 25, 1940. -R URTEL l 2,205,504

SIGNALING CIRCUIT Filed Oct. 27, 1936 ro RF. soz/RCE TO THE TRA/VSM/TTER SIGNAL EEERESEN TA T/ON j :PuR/ous 1 AUXlL/ARY SCANNER INVENTOR RUDOLF URTEL ATTORNEY 

